Random files on computer desktop

Machine info:
Tech Support Guy System Info Utility version 1.0.0.2
OS Version: Microsoft Windows 8.1, 64 bit
Processor: Intel(R) Celeron(R) CPU 847 @ 1.10GHz, Intel64 Family 6 Model 42 Stepping 7
Processor Count: 2
RAM: 3965 Mb
Graphics Card: Intel(R) HD Graphics, 1790 Mb
Hard Drives: C: Total - 268890 MB, Free - 181405 MB;
Motherboard: SAMSUNG ELECTRONICS CO., LTD., NP300E5E-A08UK
Antivirus: Norton Internet Security, Disabled

Hi,

I recently disabled my antivirus for problems with software, and 4 strange files popped up on my desktop. I had 2 files named, "desktop.ini" and 2 files named "~$~$Cube.docx" I find that very strange because I am sure that that was the only thing I did. I couldn't open the ~$~$Cube.docx file, because it said that it was a damaged file. Why is this and what can I do to fix it?

Thank you,

-ChengJ8603